./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:26:01,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:26:01,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:26:01,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:26:01,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:26:01,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:26:01,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:26:01,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:26:01,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:26:01,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:26:01,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:26:01,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:26:01,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:26:01,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:26:01,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:26:01,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:26:01,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:26:01,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:26:01,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:26:01,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:26:01,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:26:01,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:26:01,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:26:01,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:26:01,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:26:01,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:26:01,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:26:01,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:26:01,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:26:01,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:26:01,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:26:01,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:26:01,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:26:01,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:26:01,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:26:01,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:26:01,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:26:01,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:26:01,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:26:01,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:26:01,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:26:01,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:26:01,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:26:01,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:26:01,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:26:01,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:26:01,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:26:01,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:26:01,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:26:01,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:26:01,655 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:26:01,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:26:01,657 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:26:01,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:26:01,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:26:01,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:26:01,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:26:01,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:26:01,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:26:01,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:26:01,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:26:01,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:26:01,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:26:01,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:26:01,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:26:01,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:26:01,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:01,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:26:01,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:26:01,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:26:01,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:26:01,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:26:01,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:26:01,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:26:01,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:26:01,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:26:01,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 [2021-11-19 04:26:02,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:26:02,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:26:02,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:26:02,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:26:02,116 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:26:02,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2021-11-19 04:26:02,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/data/9c63eeae5/fd95163dd9a54f3a804e669f96aec97c/FLAGbb07787fb [2021-11-19 04:26:03,095 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:26:03,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2021-11-19 04:26:03,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/data/9c63eeae5/fd95163dd9a54f3a804e669f96aec97c/FLAGbb07787fb [2021-11-19 04:26:03,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/data/9c63eeae5/fd95163dd9a54f3a804e669f96aec97c [2021-11-19 04:26:03,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:26:03,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:26:03,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:03,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:26:03,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:26:03,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:03" (1/1) ... [2021-11-19 04:26:03,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2b741a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:03, skipping insertion in model container [2021-11-19 04:26:03,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:03" (1/1) ... [2021-11-19 04:26:03,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:26:03,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:26:03,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2021-11-19 04:26:03,948 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:03,960 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:26:03,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2021-11-19 04:26:04,198 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:04,217 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:26:04,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04 WrapperNode [2021-11-19 04:26:04,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:04,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:04,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:26:04,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:26:04,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,393 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-19 04:26:04,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:04,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:26:04,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:26:04,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:26:04,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:26:04,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:26:04,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:26:04,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:26:04,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (1/1) ... [2021-11-19 04:26:04,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:04,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:04,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:26:04,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:26:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:26:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:26:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:26:04,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:26:04,833 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:26:04,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:26:06,672 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:26:06,693 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:26:06,693 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:26:06,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:06 BoogieIcfgContainer [2021-11-19 04:26:06,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:26:06,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:26:06,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:26:06,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:26:06,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:26:03" (1/3) ... [2021-11-19 04:26:06,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483fa4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:06, skipping insertion in model container [2021-11-19 04:26:06,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:04" (2/3) ... [2021-11-19 04:26:06,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483fa4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:06, skipping insertion in model container [2021-11-19 04:26:06,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:06" (3/3) ... [2021-11-19 04:26:06,711 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2021-11-19 04:26:06,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:26:06,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:26:06,807 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:26:06,820 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:26:06,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:26:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 04:26:06,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:06,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:06,888 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:06,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2021-11-19 04:26:06,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:06,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067942762] [2021-11-19 04:26:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:06,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:26:07,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:07,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067942762] [2021-11-19 04:26:07,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067942762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:07,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:07,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:07,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082256541] [2021-11-19 04:26:07,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:07,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:07,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:07,406 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:09,484 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-11-19 04:26:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:09,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-19 04:26:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:09,523 INFO L225 Difference]: With dead ends: 852 [2021-11-19 04:26:09,524 INFO L226 Difference]: Without dead ends: 538 [2021-11-19 04:26:09,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:09,543 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 554 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:09,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 44 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-19 04:26:09,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-19 04:26:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-19 04:26:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-11-19 04:26:09,664 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 39 [2021-11-19 04:26:09,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:09,665 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-11-19 04:26:09,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-11-19 04:26:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-19 04:26:09,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:09,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:09,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:26:09,682 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1976295897, now seen corresponding path program 1 times [2021-11-19 04:26:09,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:09,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79611244] [2021-11-19 04:26:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:09,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 04:26:09,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:09,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79611244] [2021-11-19 04:26:09,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79611244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:09,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:09,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:26:09,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801501547] [2021-11-19 04:26:09,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:09,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:09,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:09,873 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:10,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:10,771 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-11-19 04:26:10,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:10,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-11-19 04:26:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:10,777 INFO L225 Difference]: With dead ends: 1074 [2021-11-19 04:26:10,777 INFO L226 Difference]: Without dead ends: 716 [2021-11-19 04:26:10,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:10,781 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:10,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 04:26:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-11-19 04:26:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-11-19 04:26:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-11-19 04:26:10,811 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 187 [2021-11-19 04:26:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:10,812 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-11-19 04:26:10,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-11-19 04:26:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 04:26:10,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:10,816 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:10,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:26:10,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1989656586, now seen corresponding path program 1 times [2021-11-19 04:26:10,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:10,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791089565] [2021-11-19 04:26:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:10,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 04:26:11,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:11,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791089565] [2021-11-19 04:26:11,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791089565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:11,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:11,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:11,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728583313] [2021-11-19 04:26:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:11,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:11,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:11,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:11,025 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:12,085 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2021-11-19 04:26:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:12,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-11-19 04:26:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:12,103 INFO L225 Difference]: With dead ends: 1637 [2021-11-19 04:26:12,103 INFO L226 Difference]: Without dead ends: 1072 [2021-11-19 04:26:12,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:12,106 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 112 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:12,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 04:26:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-11-19 04:26:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-11-19 04:26:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2021-11-19 04:26:12,136 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 210 [2021-11-19 04:26:12,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:12,137 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2021-11-19 04:26:12,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2021-11-19 04:26:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-19 04:26:12,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:12,144 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:26:12,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:12,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1545432834, now seen corresponding path program 1 times [2021-11-19 04:26:12,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:12,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103865381] [2021-11-19 04:26:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:12,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 174 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 04:26:12,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:12,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103865381] [2021-11-19 04:26:12,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103865381] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:12,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160537403] [2021-11-19 04:26:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:12,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:12,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:12,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:12,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:26:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:12,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:26:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-19 04:26:13,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:13,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160537403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:13,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:13,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-19 04:26:13,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695471185] [2021-11-19 04:26:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:13,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:13,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:13,915 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:14,733 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2021-11-19 04:26:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:14,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2021-11-19 04:26:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:14,748 INFO L225 Difference]: With dead ends: 2320 [2021-11-19 04:26:14,748 INFO L226 Difference]: Without dead ends: 1606 [2021-11-19 04:26:14,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:14,752 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:14,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 04:26:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-11-19 04:26:14,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2021-11-19 04:26:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2021-11-19 04:26:14,804 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 341 [2021-11-19 04:26:14,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:14,806 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2021-11-19 04:26:14,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:14,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2021-11-19 04:26:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-11-19 04:26:14,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:14,819 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:14,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:15,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:15,045 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:15,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash 560605277, now seen corresponding path program 1 times [2021-11-19 04:26:15,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:15,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123203930] [2021-11-19 04:26:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:15,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-19 04:26:15,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:15,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123203930] [2021-11-19 04:26:15,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123203930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:15,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:15,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:15,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114146204] [2021-11-19 04:26:15,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:15,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:15,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:15,378 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:16,191 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2021-11-19 04:26:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-11-19 04:26:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:16,207 INFO L225 Difference]: With dead ends: 3210 [2021-11-19 04:26:16,207 INFO L226 Difference]: Without dead ends: 1962 [2021-11-19 04:26:16,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:16,212 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:16,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 04:26:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-19 04:26:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-11-19 04:26:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2021-11-19 04:26:16,286 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 440 [2021-11-19 04:26:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:16,288 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2021-11-19 04:26:16,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2021-11-19 04:26:16,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-11-19 04:26:16,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:16,303 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:16,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:26:16,304 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1453668839, now seen corresponding path program 1 times [2021-11-19 04:26:16,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:16,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941307153] [2021-11-19 04:26:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:16,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 04:26:16,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:16,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941307153] [2021-11-19 04:26:16,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941307153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:16,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:16,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:16,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128093266] [2021-11-19 04:26:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:16,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:16,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:16,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:16,581 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:17,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:17,772 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2021-11-19 04:26:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:17,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 464 [2021-11-19 04:26:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:17,792 INFO L225 Difference]: With dead ends: 3744 [2021-11-19 04:26:17,792 INFO L226 Difference]: Without dead ends: 2140 [2021-11-19 04:26:17,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:17,804 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 126 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:17,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 90 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 04:26:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-11-19 04:26:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-11-19 04:26:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2021-11-19 04:26:17,879 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 464 [2021-11-19 04:26:17,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:17,880 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2021-11-19 04:26:17,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:17,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2021-11-19 04:26:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-19 04:26:17,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:17,899 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:17,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 04:26:17,900 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1503435120, now seen corresponding path program 1 times [2021-11-19 04:26:17,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:17,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855218937] [2021-11-19 04:26:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:17,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2021-11-19 04:26:18,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:18,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855218937] [2021-11-19 04:26:18,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855218937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:18,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:18,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:18,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091079833] [2021-11-19 04:26:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:18,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:18,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:18,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:18,291 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:19,173 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2021-11-19 04:26:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:19,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 520 [2021-11-19 04:26:19,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:19,192 INFO L225 Difference]: With dead ends: 4336 [2021-11-19 04:26:19,193 INFO L226 Difference]: Without dead ends: 2318 [2021-11-19 04:26:19,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:19,198 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:19,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 04:26:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-11-19 04:26:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-11-19 04:26:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2021-11-19 04:26:19,275 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 520 [2021-11-19 04:26:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:19,277 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2021-11-19 04:26:19,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2021-11-19 04:26:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2021-11-19 04:26:19,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:19,285 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:19,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 04:26:19,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:19,287 INFO L85 PathProgramCache]: Analyzing trace with hash -145271439, now seen corresponding path program 2 times [2021-11-19 04:26:19,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:19,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908297746] [2021-11-19 04:26:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:19,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 779 proven. 11 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:19,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:19,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908297746] [2021-11-19 04:26:19,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908297746] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:19,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500676650] [2021-11-19 04:26:19,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:26:19,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:19,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:19,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:19,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:26:19,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:26:19,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:26:19,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:26:19,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:22,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:22,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500676650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:22,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:22,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-11-19 04:26:22,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955139030] [2021-11-19 04:26:22,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:22,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:26:22,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:22,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:26:22,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:22,705 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:23,912 INFO L93 Difference]: Finished difference Result 4841 states and 5308 transitions. [2021-11-19 04:26:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:26:23,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 546 [2021-11-19 04:26:23,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:23,932 INFO L225 Difference]: With dead ends: 4841 [2021-11-19 04:26:23,932 INFO L226 Difference]: Without dead ends: 2881 [2021-11-19 04:26:23,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:23,937 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 301 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:23,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 20 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 04:26:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-11-19 04:26:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2674. [2021-11-19 04:26:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0751964085297419) internal successors, (2874), 2673 states have internal predecessors, (2874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2874 transitions. [2021-11-19 04:26:24,049 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2874 transitions. Word has length 546 [2021-11-19 04:26:24,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:24,050 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2874 transitions. [2021-11-19 04:26:24,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:24,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2874 transitions. [2021-11-19 04:26:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-19 04:26:24,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:24,060 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:24,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:24,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:24,277 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:24,278 INFO L85 PathProgramCache]: Analyzing trace with hash 823062922, now seen corresponding path program 1 times [2021-11-19 04:26:24,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:24,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144887835] [2021-11-19 04:26:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:24,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 792 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:24,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:24,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144887835] [2021-11-19 04:26:24,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144887835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:24,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:24,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:24,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440572032] [2021-11-19 04:26:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:24,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:24,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:24,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:24,606 INFO L87 Difference]: Start difference. First operand 2674 states and 2874 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:25,365 INFO L93 Difference]: Finished difference Result 6058 states and 6580 transitions. [2021-11-19 04:26:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 553 [2021-11-19 04:26:25,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:25,393 INFO L225 Difference]: With dead ends: 6058 [2021-11-19 04:26:25,394 INFO L226 Difference]: Without dead ends: 3564 [2021-11-19 04:26:25,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:25,401 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:25,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 04:26:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-11-19 04:26:25,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-11-19 04:26:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.074094863878754) internal successors, (3827), 3563 states have internal predecessors, (3827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3827 transitions. [2021-11-19 04:26:25,514 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3827 transitions. Word has length 553 [2021-11-19 04:26:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:25,515 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3827 transitions. [2021-11-19 04:26:25,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3827 transitions. [2021-11-19 04:26:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2021-11-19 04:26:25,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:25,525 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:25,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 04:26:25,526 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:25,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:25,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2111047309, now seen corresponding path program 1 times [2021-11-19 04:26:25,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:25,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199820310] [2021-11-19 04:26:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:25,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 806 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-19 04:26:25,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:25,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199820310] [2021-11-19 04:26:25,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199820310] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:25,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165164354] [2021-11-19 04:26:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:25,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:25,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:25,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:26,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 04:26:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:26,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:26:26,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2021-11-19 04:26:27,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:27,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165164354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:27,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:27,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-19 04:26:27,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889855291] [2021-11-19 04:26:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:27,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:27,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:27,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:27,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:27,279 INFO L87 Difference]: Start difference. First operand 3564 states and 3827 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:27,914 INFO L93 Difference]: Finished difference Result 7482 states and 8095 transitions. [2021-11-19 04:26:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:27,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 598 [2021-11-19 04:26:27,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:27,937 INFO L225 Difference]: With dead ends: 7482 [2021-11-19 04:26:27,937 INFO L226 Difference]: Without dead ends: 4098 [2021-11-19 04:26:27,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:27,943 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:27,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 235 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 04:26:27,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-11-19 04:26:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2021-11-19 04:26:28,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0719571319214085) internal successors, (4201), 3919 states have internal predecessors, (4201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4201 transitions. [2021-11-19 04:26:28,046 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4201 transitions. Word has length 598 [2021-11-19 04:26:28,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:28,047 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4201 transitions. [2021-11-19 04:26:28,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:28,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4201 transitions. [2021-11-19 04:26:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-19 04:26:28,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:28,056 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:28,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:28,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 04:26:28,281 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:28,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:28,281 INFO L85 PathProgramCache]: Analyzing trace with hash -932781460, now seen corresponding path program 1 times [2021-11-19 04:26:28,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:28,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985718384] [2021-11-19 04:26:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:28,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 882 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-19 04:26:28,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:28,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985718384] [2021-11-19 04:26:28,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985718384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:28,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038990126] [2021-11-19 04:26:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:28,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:28,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:28,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 04:26:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:28,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:26:28,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-19 04:26:32,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:32,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038990126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:32,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:32,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-19 04:26:32,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088309316] [2021-11-19 04:26:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:32,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:32,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:32,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:32,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:32,554 INFO L87 Difference]: Start difference. First operand 3920 states and 4201 transitions. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:33,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:33,092 INFO L93 Difference]: Finished difference Result 7925 states and 8496 transitions. [2021-11-19 04:26:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:33,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 617 [2021-11-19 04:26:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:33,109 INFO L225 Difference]: With dead ends: 7925 [2021-11-19 04:26:33,109 INFO L226 Difference]: Without dead ends: 4185 [2021-11-19 04:26:33,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:33,116 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:33,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 51 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:33,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2021-11-19 04:26:33,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3920. [2021-11-19 04:26:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.067364123500893) internal successors, (4183), 3919 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4183 transitions. [2021-11-19 04:26:33,213 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4183 transitions. Word has length 617 [2021-11-19 04:26:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:33,214 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4183 transitions. [2021-11-19 04:26:33,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4183 transitions. [2021-11-19 04:26:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2021-11-19 04:26:33,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:33,223 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:33,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-19 04:26:33,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-19 04:26:33,437 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1940762816, now seen corresponding path program 1 times [2021-11-19 04:26:33,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:33,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548492303] [2021-11-19 04:26:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:33,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:33,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:33,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548492303] [2021-11-19 04:26:33,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548492303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:33,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:33,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:33,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441278452] [2021-11-19 04:26:33,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:33,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:33,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:33,770 INFO L87 Difference]: Start difference. First operand 3920 states and 4183 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:34,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:34,340 INFO L93 Difference]: Finished difference Result 8906 states and 9533 transitions. [2021-11-19 04:26:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:34,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 639 [2021-11-19 04:26:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:34,364 INFO L225 Difference]: With dead ends: 8906 [2021-11-19 04:26:34,364 INFO L226 Difference]: Without dead ends: 5166 [2021-11-19 04:26:34,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:34,370 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:34,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:34,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-19 04:26:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2021-11-19 04:26:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0607938044530494) internal successors, (5479), 5165 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:34,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5479 transitions. [2021-11-19 04:26:34,479 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5479 transitions. Word has length 639 [2021-11-19 04:26:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:34,480 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5479 transitions. [2021-11-19 04:26:34,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5479 transitions. [2021-11-19 04:26:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2021-11-19 04:26:34,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:34,492 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:34,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 04:26:34,492 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:34,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1898901820, now seen corresponding path program 1 times [2021-11-19 04:26:34,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:34,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616263352] [2021-11-19 04:26:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:34,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:34,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:34,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616263352] [2021-11-19 04:26:34,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616263352] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:34,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313087335] [2021-11-19 04:26:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:34,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:34,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:34,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:34,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 04:26:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:35,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:26:35,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-11-19 04:26:36,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:36,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313087335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:36,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:36,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-19 04:26:36,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085536487] [2021-11-19 04:26:36,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:36,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:36,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:36,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:36,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:36,236 INFO L87 Difference]: Start difference. First operand 5166 states and 5479 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:36,778 INFO L93 Difference]: Finished difference Result 10686 states and 11380 transitions. [2021-11-19 04:26:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:36,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 794 [2021-11-19 04:26:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:36,811 INFO L225 Difference]: With dead ends: 10686 [2021-11-19 04:26:36,819 INFO L226 Difference]: Without dead ends: 5700 [2021-11-19 04:26:36,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:36,827 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:36,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 31 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-11-19 04:26:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2021-11-19 04:26:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.058957711879277) internal successors, (6035), 5699 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6035 transitions. [2021-11-19 04:26:36,994 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6035 transitions. Word has length 794 [2021-11-19 04:26:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:36,996 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 6035 transitions. [2021-11-19 04:26:36,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6035 transitions. [2021-11-19 04:26:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2021-11-19 04:26:37,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:37,011 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:37,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:37,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-19 04:26:37,232 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:37,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1777817371, now seen corresponding path program 1 times [2021-11-19 04:26:37,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:37,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549147130] [2021-11-19 04:26:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:37,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:37,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:37,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549147130] [2021-11-19 04:26:37,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549147130] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:37,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729428732] [2021-11-19 04:26:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:37,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:37,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:37,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:37,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 04:26:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:37,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:26:37,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:39,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-19 04:26:41,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729428732] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:26:41,006 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:26:41,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-19 04:26:41,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988418082] [2021-11-19 04:26:41,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:26:41,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:41,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:41,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:41,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:41,011 INFO L87 Difference]: Start difference. First operand 5700 states and 6035 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:42,345 INFO L93 Difference]: Finished difference Result 13356 states and 14150 transitions. [2021-11-19 04:26:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:26:42,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 823 [2021-11-19 04:26:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:42,366 INFO L225 Difference]: With dead ends: 13356 [2021-11-19 04:26:42,367 INFO L226 Difference]: Without dead ends: 7836 [2021-11-19 04:26:42,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1644 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:42,377 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 48 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:42,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 63 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 04:26:42,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2021-11-19 04:26:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 6768. [2021-11-19 04:26:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.056450421161519) internal successors, (7149), 6767 states have internal predecessors, (7149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7149 transitions. [2021-11-19 04:26:42,540 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7149 transitions. Word has length 823 [2021-11-19 04:26:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:42,541 INFO L470 AbstractCegarLoop]: Abstraction has 6768 states and 7149 transitions. [2021-11-19 04:26:42,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7149 transitions. [2021-11-19 04:26:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2021-11-19 04:26:42,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:42,559 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:42,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:42,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:42,773 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:42,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1631092303, now seen corresponding path program 1 times [2021-11-19 04:26:42,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:42,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359842251] [2021-11-19 04:26:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:42,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1613 proven. 93 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2021-11-19 04:26:43,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:43,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359842251] [2021-11-19 04:26:43,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359842251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:43,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966104047] [2021-11-19 04:26:43,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:43,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:43,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:43,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:43,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 04:26:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:43,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:26:43,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2021-11-19 04:26:45,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:45,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966104047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:45,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:45,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-19 04:26:45,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047572124] [2021-11-19 04:26:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:45,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:45,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:45,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:45,706 INFO L87 Difference]: Start difference. First operand 6768 states and 7149 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:46,310 INFO L93 Difference]: Finished difference Result 13534 states and 14299 transitions. [2021-11-19 04:26:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:46,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 913 [2021-11-19 04:26:46,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:46,366 INFO L225 Difference]: With dead ends: 13534 [2021-11-19 04:26:46,366 INFO L226 Difference]: Without dead ends: 6946 [2021-11-19 04:26:46,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:46,379 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:46,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2021-11-19 04:26:46,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6590. [2021-11-19 04:26:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.057368341174685) internal successors, (6967), 6589 states have internal predecessors, (6967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6967 transitions. [2021-11-19 04:26:46,518 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6967 transitions. Word has length 913 [2021-11-19 04:26:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:46,519 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 6967 transitions. [2021-11-19 04:26:46,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6967 transitions. [2021-11-19 04:26:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2021-11-19 04:26:46,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:46,548 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:46,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:46,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:46,763 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:46,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1968132824, now seen corresponding path program 1 times [2021-11-19 04:26:46,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:46,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567119702] [2021-11-19 04:26:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:46,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-11-19 04:26:47,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:47,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567119702] [2021-11-19 04:26:47,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567119702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:47,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:47,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:47,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111069808] [2021-11-19 04:26:47,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:47,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:47,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:47,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:47,262 INFO L87 Difference]: Start difference. First operand 6590 states and 6967 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:47,796 INFO L93 Difference]: Finished difference Result 12822 states and 13573 transitions. [2021-11-19 04:26:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:47,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 990 [2021-11-19 04:26:47,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:47,811 INFO L225 Difference]: With dead ends: 12822 [2021-11-19 04:26:47,811 INFO L226 Difference]: Without dead ends: 6412 [2021-11-19 04:26:47,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:47,820 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:47,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 226 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-11-19 04:26:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6412. [2021-11-19 04:26:47,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0505381375760412) internal successors, (6735), 6411 states have internal predecessors, (6735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6735 transitions. [2021-11-19 04:26:48,003 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6735 transitions. Word has length 990 [2021-11-19 04:26:48,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:48,004 INFO L470 AbstractCegarLoop]: Abstraction has 6412 states and 6735 transitions. [2021-11-19 04:26:48,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:48,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6735 transitions. [2021-11-19 04:26:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-19 04:26:48,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:48,024 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:48,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-19 04:26:48,025 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:48,026 INFO L85 PathProgramCache]: Analyzing trace with hash -387054434, now seen corresponding path program 1 times [2021-11-19 04:26:48,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:48,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209849438] [2021-11-19 04:26:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:48,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2021-11-19 04:26:48,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:48,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209849438] [2021-11-19 04:26:48,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209849438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:48,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:48,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:48,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456885804] [2021-11-19 04:26:48,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:48,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:48,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:48,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:48,582 INFO L87 Difference]: Start difference. First operand 6412 states and 6735 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:49,286 INFO L93 Difference]: Finished difference Result 12486 states and 13123 transitions. [2021-11-19 04:26:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1031 [2021-11-19 04:26:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:49,302 INFO L225 Difference]: With dead ends: 12486 [2021-11-19 04:26:49,302 INFO L226 Difference]: Without dead ends: 6234 [2021-11-19 04:26:49,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:49,310 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:49,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 17 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 04:26:49,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-11-19 04:26:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2021-11-19 04:26:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0497352799614952) internal successors, (6543), 6233 states have internal predecessors, (6543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6543 transitions. [2021-11-19 04:26:49,495 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6543 transitions. Word has length 1031 [2021-11-19 04:26:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:49,496 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6543 transitions. [2021-11-19 04:26:49,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6543 transitions. [2021-11-19 04:26:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2021-11-19 04:26:49,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:49,521 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:49,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-19 04:26:49,522 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:49,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:49,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1310024199, now seen corresponding path program 1 times [2021-11-19 04:26:49,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:49,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051419152] [2021-11-19 04:26:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:49,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2476 proven. 72 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2021-11-19 04:26:50,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:50,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051419152] [2021-11-19 04:26:50,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051419152] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:50,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914923999] [2021-11-19 04:26:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:50,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:50,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:50,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:50,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 04:26:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:50,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:26:50,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2189 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2021-11-19 04:26:52,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:52,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914923999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:52,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:52,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-19 04:26:52,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83369809] [2021-11-19 04:26:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:52,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:52,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:52,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:52,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:52,447 INFO L87 Difference]: Start difference. First operand 6234 states and 6543 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:53,407 INFO L93 Difference]: Finished difference Result 13356 states and 14024 transitions. [2021-11-19 04:26:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1036 [2021-11-19 04:26:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:53,421 INFO L225 Difference]: With dead ends: 13356 [2021-11-19 04:26:53,421 INFO L226 Difference]: Without dead ends: 7302 [2021-11-19 04:26:53,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:53,429 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 117 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:53,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 42 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 04:26:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-11-19 04:26:53,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6590. [2021-11-19 04:26:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.04795871907725) internal successors, (6905), 6589 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6905 transitions. [2021-11-19 04:26:53,573 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6905 transitions. Word has length 1036 [2021-11-19 04:26:53,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:53,575 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 6905 transitions. [2021-11-19 04:26:53,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6905 transitions. [2021-11-19 04:26:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1396 [2021-11-19 04:26:53,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:53,600 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:53,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:53,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-19 04:26:53,827 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash 126987919, now seen corresponding path program 1 times [2021-11-19 04:26:53,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:53,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850051502] [2021-11-19 04:26:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:53,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5983 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-11-19 04:26:54,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:54,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850051502] [2021-11-19 04:26:54,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850051502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:54,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:54,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:26:54,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551775443] [2021-11-19 04:26:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:54,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:54,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:54,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:54,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:54,661 INFO L87 Difference]: Start difference. First operand 6590 states and 6905 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:55,197 INFO L93 Difference]: Finished difference Result 13000 states and 13629 transitions. [2021-11-19 04:26:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:26:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1395 [2021-11-19 04:26:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:55,207 INFO L225 Difference]: With dead ends: 13000 [2021-11-19 04:26:55,208 INFO L226 Difference]: Without dead ends: 6590 [2021-11-19 04:26:55,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:26:55,216 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:55,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 210 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2021-11-19 04:26:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6234. [2021-11-19 04:26:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0444408791914006) internal successors, (6510), 6233 states have internal predecessors, (6510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6510 transitions. [2021-11-19 04:26:55,335 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6510 transitions. Word has length 1395 [2021-11-19 04:26:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:55,337 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6510 transitions. [2021-11-19 04:26:55,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:26:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6510 transitions. [2021-11-19 04:26:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1498 [2021-11-19 04:26:55,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:55,365 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:55,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-19 04:26:55,366 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 674872807, now seen corresponding path program 1 times [2021-11-19 04:26:55,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:55,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92580437] [2021-11-19 04:26:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:55,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7083 backedges. 4482 proven. 252 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2021-11-19 04:26:56,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:56,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92580437] [2021-11-19 04:26:56,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92580437] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:56,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589956431] [2021-11-19 04:26:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:56,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:56,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:56,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 04:26:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:56,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:26:56,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 7083 backedges. 2470 proven. 0 refuted. 0 times theorem prover too weak. 4613 trivial. 0 not checked. [2021-11-19 04:26:59,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:26:59,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589956431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:59,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:59,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-19 04:26:59,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946017098] [2021-11-19 04:26:59,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:59,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:26:59,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:59,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:26:59,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:59,714 INFO L87 Difference]: Start difference. First operand 6234 states and 6510 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:00,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:00,320 INFO L93 Difference]: Finished difference Result 12110 states and 12660 transitions. [2021-11-19 04:27:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:27:00,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1497 [2021-11-19 04:27:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:00,330 INFO L225 Difference]: With dead ends: 12110 [2021-11-19 04:27:00,330 INFO L226 Difference]: Without dead ends: 6234 [2021-11-19 04:27:00,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1501 GetRequests, 1496 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:00,336 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:00,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 234 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:27:00,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-11-19 04:27:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2021-11-19 04:27:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0418738969998396) internal successors, (6494), 6233 states have internal predecessors, (6494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6494 transitions. [2021-11-19 04:27:00,446 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6494 transitions. Word has length 1497 [2021-11-19 04:27:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:00,447 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6494 transitions. [2021-11-19 04:27:00,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6494 transitions. [2021-11-19 04:27:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2021-11-19 04:27:00,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:00,482 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:00,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:00,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:27:00,705 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -339858598, now seen corresponding path program 1 times [2021-11-19 04:27:00,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:27:00,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113097706] [2021-11-19 04:27:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:00,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:27:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8594 backedges. 4979 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-11-19 04:27:01,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:27:01,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113097706] [2021-11-19 04:27:01,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113097706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:01,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:01,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:27:01,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813129190] [2021-11-19 04:27:01,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:01,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 04:27:01,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:27:01,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:27:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:01,945 INFO L87 Difference]: Start difference. First operand 6234 states and 6494 transitions. Second operand has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:03,728 INFO L93 Difference]: Finished difference Result 15151 states and 15836 transitions. [2021-11-19 04:27:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:27:03,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1650 [2021-11-19 04:27:03,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:03,738 INFO L225 Difference]: With dead ends: 15151 [2021-11-19 04:27:03,739 INFO L226 Difference]: Without dead ends: 9260 [2021-11-19 04:27:03,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:03,746 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 150 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:03,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 35 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 04:27:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9260 states. [2021-11-19 04:27:03,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9260 to 8726. [2021-11-19 04:27:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8726 states, 8725 states have (on average 1.0373638968481376) internal successors, (9051), 8725 states have internal predecessors, (9051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8726 states to 8726 states and 9051 transitions. [2021-11-19 04:27:03,881 INFO L78 Accepts]: Start accepts. Automaton has 8726 states and 9051 transitions. Word has length 1650 [2021-11-19 04:27:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:03,883 INFO L470 AbstractCegarLoop]: Abstraction has 8726 states and 9051 transitions. [2021-11-19 04:27:03,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8726 states and 9051 transitions. [2021-11-19 04:27:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1747 [2021-11-19 04:27:03,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:03,971 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:03,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-19 04:27:03,971 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:03,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1276225934, now seen corresponding path program 1 times [2021-11-19 04:27:03,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:27:03,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112187579] [2021-11-19 04:27:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:03,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:27:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 2804 proven. 1045 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2021-11-19 04:27:05,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:27:05,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112187579] [2021-11-19 04:27:05,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112187579] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:27:05,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924224827] [2021-11-19 04:27:05,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:05,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:27:05,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:27:05,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:27:05,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 04:27:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:05,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:27:05,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 3849 proven. 0 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2021-11-19 04:27:08,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:27:08,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924224827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:08,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:27:08,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-19 04:27:08,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630719829] [2021-11-19 04:27:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:08,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:27:08,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:27:08,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:27:08,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:08,509 INFO L87 Difference]: Start difference. First operand 8726 states and 9051 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:09,041 INFO L93 Difference]: Finished difference Result 18162 states and 18821 transitions. [2021-11-19 04:27:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:27:09,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1746 [2021-11-19 04:27:09,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:09,064 INFO L225 Difference]: With dead ends: 18162 [2021-11-19 04:27:09,064 INFO L226 Difference]: Without dead ends: 4988 [2021-11-19 04:27:09,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1749 GetRequests, 1745 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:09,071 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:09,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 244 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:27:09,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-19 04:27:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-11-19 04:27:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.015803701393221) internal successors, (4885), 4809 states have internal predecessors, (4885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4885 transitions. [2021-11-19 04:27:09,151 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4885 transitions. Word has length 1746 [2021-11-19 04:27:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:09,153 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4885 transitions. [2021-11-19 04:27:09,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4885 transitions. [2021-11-19 04:27:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2021-11-19 04:27:09,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:09,187 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:09,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:09,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:27:09,406 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:09,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1727618608, now seen corresponding path program 1 times [2021-11-19 04:27:09,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:27:09,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372346589] [2021-11-19 04:27:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:09,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:27:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 10935 backedges. 2784 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2021-11-19 04:27:10,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:27:10,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372346589] [2021-11-19 04:27:10,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372346589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:10,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:10,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:27:10,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218558788] [2021-11-19 04:27:10,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:10,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:27:10,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:27:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:27:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:10,576 INFO L87 Difference]: Start difference. First operand 4810 states and 4885 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:11,418 INFO L93 Difference]: Finished difference Result 6597 states and 6713 transitions. [2021-11-19 04:27:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:27:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1817 [2021-11-19 04:27:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:11,427 INFO L225 Difference]: With dead ends: 6597 [2021-11-19 04:27:11,427 INFO L226 Difference]: Without dead ends: 6412 [2021-11-19 04:27:11,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:11,431 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 105 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:11,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 20 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 04:27:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-11-19 04:27:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5878. [2021-11-19 04:27:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0178662582950484) internal successors, (5982), 5877 states have internal predecessors, (5982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 5982 transitions. [2021-11-19 04:27:11,528 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 5982 transitions. Word has length 1817 [2021-11-19 04:27:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:11,530 INFO L470 AbstractCegarLoop]: Abstraction has 5878 states and 5982 transitions. [2021-11-19 04:27:11,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 5982 transitions. [2021-11-19 04:27:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2021-11-19 04:27:11,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:11,576 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:11,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-19 04:27:11,577 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:11,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:11,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2140269625, now seen corresponding path program 1 times [2021-11-19 04:27:11,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:27:11,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196903719] [2021-11-19 04:27:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:11,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:27:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 3210 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2021-11-19 04:27:13,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:27:13,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196903719] [2021-11-19 04:27:13,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196903719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:13,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:13,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:27:13,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846745668] [2021-11-19 04:27:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:13,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:27:13,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:27:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:27:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:27:13,173 INFO L87 Difference]: Start difference. First operand 5878 states and 5982 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:13,934 INFO L93 Difference]: Finished difference Result 5883 states and 5987 transitions. [2021-11-19 04:27:13,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:27:13,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2119 [2021-11-19 04:27:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:13,937 INFO L225 Difference]: With dead ends: 5883 [2021-11-19 04:27:13,937 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 04:27:13,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:27:13,940 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:13,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 15 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 04:27:13,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 04:27:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 04:27:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 04:27:13,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2119 [2021-11-19 04:27:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:13,942 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:27:13,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:27:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:27:13,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 04:27:13,945 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:27:13,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-19 04:27:13,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 04:27:18,605 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-11-19 04:27:18,605 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-11-19 04:27:18,605 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-11-19 04:27:18,606 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-11-19 04:27:18,607 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-19 04:27:18,608 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-19 04:27:18,609 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-19 04:27:18,609 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,610 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-11-19 04:27:18,612 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-19 04:27:18,612 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-19 04:27:18,612 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-19 04:27:18,612 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-11-19 04:27:18,612 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-11-19 04:27:18,613 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-11-19 04:27:18,613 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-11-19 04:27:18,613 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,613 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,613 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-19 04:27:18,614 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-11-19 04:27:18,615 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-11-19 04:27:18,615 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-11-19 04:27:18,615 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,615 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,615 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-11-19 04:27:18,616 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-11-19 04:27:18,617 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-11-19 04:27:18,617 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-11-19 04:27:18,617 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-11-19 04:27:18,617 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,617 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,618 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,619 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-11-19 04:27:18,619 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-19 04:27:18,619 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-19 04:27:18,619 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-19 04:27:18,619 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-11-19 04:27:18,620 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-11-19 04:27:18,620 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-11-19 04:27:18,620 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 04:27:18,620 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,620 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,621 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,621 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-11-19 04:27:18,621 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-19 04:27:18,621 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-19 04:27:18,621 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-11-19 04:27:18,622 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,623 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,623 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,623 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-11-19 04:27:18,623 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-19 04:27:18,623 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-19 04:27:18,624 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-19 04:27:18,624 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-11-19 04:27:18,624 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-11-19 04:27:18,624 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-11-19 04:27:18,624 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-19 04:27:18,625 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-19 04:27:18,626 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 04:27:18,626 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-11-19 04:27:18,626 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2021-11-19 04:27:18,626 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-11-19 04:27:18,626 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,627 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-11-19 04:27:18,628 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-11-19 04:27:18,628 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-19 04:27:18,628 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-19 04:27:18,628 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-19 04:27:18,628 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,629 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-19 04:27:18,630 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-19 04:27:18,630 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-19 04:27:18,630 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-11-19 04:27:18,630 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-11-19 04:27:18,630 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-11-19 04:27:18,631 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-11-19 04:27:18,631 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-11-19 04:27:18,633 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,633 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,633 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,633 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-11-19 04:27:18,633 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-11-19 04:27:18,634 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-19 04:27:18,634 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-19 04:27:18,634 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-19 04:27:18,634 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-11-19 04:27:18,634 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-11-19 04:27:18,635 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-19 04:27:18,636 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-19 04:27:18,636 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-19 04:27:18,636 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-11-19 04:27:18,636 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-11-19 04:27:18,636 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-11-19 04:27:18,637 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-11-19 04:27:18,638 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-19 04:27:18,639 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-11-19 04:27:18,640 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-11-19 04:27:18,640 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-11-19 04:27:18,640 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-11-19 04:27:18,640 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-11-19 04:27:18,640 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-19 04:27:18,641 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-11-19 04:27:18,642 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-11-19 04:27:18,642 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-11-19 04:27:18,642 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,642 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,643 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse13 (= 7 ~a15~0))) (let ((.cse7 (<= ~a21~0 7)) (.cse0 (<= ~a12~0 11)) (.cse6 (<= 7 ~a21~0)) (.cse3 (not .cse13)) (.cse11 (let ((.cse14 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse14) 0) (and (<= (+ .cse14 13) 0) (let ((.cse15 (+ ~a12~0 4))) (= (* 5 (div .cse15 5)) .cse15)))))) (.cse9 (<= 10 ~a21~0)) (.cse12 (<= 95382 ~a12~0)) (.cse10 (<= 20 ~a12~0)) (.cse5 (<= (+ 49 ~a12~0) 0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse8 (<= ~a21~0 6)) (.cse4 (<= ~a15~0 7))) (or (and .cse0 (<= 9 ~a21~0) .cse1 .cse2 .cse3 (< 0 (+ ~a12~0 43))) (and .cse1 .cse4 .cse5) (and .cse1 .cse4 .cse3) (and .cse1 .cse6 .cse2 .cse4 .cse7) (and (or (and .cse0 .cse1 .cse6 .cse2 .cse7) (and .cse0 .cse1 .cse2 .cse8)) (<= 0 (+ 41 ~a12~0))) (and .cse0 .cse1 .cse9) (and .cse1 .cse10 .cse4) (and .cse1 .cse6 .cse10 .cse11) (and .cse1 .cse2 .cse9 .cse12) (and (= ~a21~0 8) .cse1 (<= (+ 44 ~a12~0) 0)) (and .cse1 .cse3 (<= 8 ~a21~0) (<= ~a21~0 8) .cse11) (and .cse1 .cse2 .cse4 .cse9) (and .cse1 .cse2 .cse8 .cse12) (and .cse1 .cse10 (<= ~a12~0 586307)) (and .cse1 (= ~a21~0 9) (< 11 ~a12~0) .cse13) (and .cse2 .cse8 .cse4 .cse5) (and .cse1 (= 7 ~a21~0) .cse2 .cse5) (and .cse1 .cse2 .cse8 .cse4)))) [2021-11-19 04:27:18,643 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-11-19 04:27:18,643 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-11-19 04:27:18,643 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-19 04:27:18,643 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-19 04:27:18,644 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-11-19 04:27:18,644 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-11-19 04:27:18,644 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-11-19 04:27:18,644 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-11-19 04:27:18,644 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,645 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,645 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-11-19 04:27:18,645 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-11-19 04:27:18,645 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-11-19 04:27:18,645 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,646 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,647 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 04:27:18,647 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-11-19 04:27:18,647 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-11-19 04:27:18,647 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-19 04:27:18,647 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-19 04:27:18,648 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,649 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-11-19 04:27:18,649 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse13 (= 7 ~a15~0))) (let ((.cse7 (<= ~a21~0 7)) (.cse0 (<= ~a12~0 11)) (.cse6 (<= 7 ~a21~0)) (.cse3 (not .cse13)) (.cse11 (let ((.cse14 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse14) 0) (and (<= (+ .cse14 13) 0) (let ((.cse15 (+ ~a12~0 4))) (= (* 5 (div .cse15 5)) .cse15)))))) (.cse9 (<= 10 ~a21~0)) (.cse12 (<= 95382 ~a12~0)) (.cse10 (<= 20 ~a12~0)) (.cse5 (<= (+ 49 ~a12~0) 0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse8 (<= ~a21~0 6)) (.cse4 (<= ~a15~0 7))) (or (and .cse0 (<= 9 ~a21~0) .cse1 .cse2 .cse3 (< 0 (+ ~a12~0 43))) (and .cse1 .cse4 .cse5) (and .cse1 .cse4 .cse3) (and .cse1 .cse6 .cse2 .cse4 .cse7) (and (or (and .cse0 .cse1 .cse6 .cse2 .cse7) (and .cse0 .cse1 .cse2 .cse8)) (<= 0 (+ 41 ~a12~0))) (and .cse0 .cse1 .cse9) (and .cse1 .cse10 .cse4) (and .cse1 .cse6 .cse10 .cse11) (and .cse1 .cse2 .cse9 .cse12) (and (= ~a21~0 8) .cse1 (<= (+ 44 ~a12~0) 0)) (and .cse1 .cse3 (<= 8 ~a21~0) (<= ~a21~0 8) .cse11) (and .cse1 .cse2 .cse4 .cse9) (and .cse1 .cse2 .cse8 .cse12) (and .cse1 .cse10 (<= ~a12~0 586307)) (and .cse1 (= ~a21~0 9) (< 11 ~a12~0) .cse13) (and .cse2 .cse8 .cse4 .cse5) (and .cse1 (= 7 ~a21~0) .cse2 .cse5) (and .cse1 .cse2 .cse8 .cse4)))) [2021-11-19 04:27:18,649 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-11-19 04:27:18,649 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-11-19 04:27:18,650 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-11-19 04:27:18,651 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-11-19 04:27:18,651 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,651 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,651 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-11-19 04:27:18,651 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-11-19 04:27:18,652 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-19 04:27:18,652 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-19 04:27:18,652 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-19 04:27:18,658 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:18,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:27:18,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:27:18 BoogieIcfgContainer [2021-11-19 04:27:18,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:27:18,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:27:18,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:27:18,716 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:27:18,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:06" (3/4) ... [2021-11-19 04:27:18,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:27:18,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-19 04:27:18,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-19 04:27:18,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:27:18,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:27:18,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:27:18,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:27:18,985 INFO L158 Benchmark]: Toolchain (without parser) took 75727.17ms. Allocated memory was 113.2MB in the beginning and 755.0MB in the end (delta: 641.7MB). Free memory was 70.6MB in the beginning and 638.1MB in the end (delta: -567.5MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,985 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 113.2MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:27:18,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 959.19ms. Allocated memory is still 113.2MB. Free memory was 70.5MB in the beginning and 65.8MB in the end (delta: 4.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 173.51ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 56.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,987 INFO L158 Benchmark]: Boogie Preprocessor took 138.18ms. Allocated memory is still 113.2MB. Free memory was 56.1MB in the beginning and 50.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,988 INFO L158 Benchmark]: RCFGBuilder took 2161.40ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 50.2MB in the beginning and 94.0MB in the end (delta: -43.7MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,991 INFO L158 Benchmark]: TraceAbstraction took 72014.72ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 93.0MB in the beginning and 658.0MB in the end (delta: -565.0MB). Peak memory consumption was 483.3MB. Max. memory is 16.1GB. [2021-11-19 04:27:18,992 INFO L158 Benchmark]: Witness Printer took 268.36ms. Allocated memory is still 755.0MB. Free memory was 658.0MB in the beginning and 638.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-19 04:27:19,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 113.2MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 959.19ms. Allocated memory is still 113.2MB. Free memory was 70.5MB in the beginning and 65.8MB in the end (delta: 4.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 173.51ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 56.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.18ms. Allocated memory is still 113.2MB. Free memory was 56.1MB in the beginning and 50.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2161.40ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 50.2MB in the beginning and 94.0MB in the end (delta: -43.7MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 72014.72ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 93.0MB in the beginning and 658.0MB in the end (delta: -565.0MB). Peak memory consumption was 483.3MB. Max. memory is 16.1GB. * Witness Printer took 268.36ms. Allocated memory is still 755.0MB. Free memory was 658.0MB in the beginning and 638.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 131]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.9s, OverallIterations: 24, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2806 SdHoareTripleChecker+Valid, 19.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2806 mSDsluCounter, 2429 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 168 mSDsCounter, 1795 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15212 IncrementalHoareTripleChecker+Invalid, 17007 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1795 mSolverCounterUnsat, 2261 mSDtfsCounter, 15212 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9816 GetRequests, 9742 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8726occurred in iteration=21, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 24 MinimizatonAttempts, 5100 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 138 NumberOfFragments, 643 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3698 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 9972 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 33.3s InterpolantComputationTime, 29876 NumberOfCodeBlocks, 29876 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 30664 ConstructedInterpolants, 0 QuantifiedInterpolants, 92717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11169 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 35 InterpolantComputations, 23 PerfectInterpolantSequences, 111012/113625 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a12 <= 11 && 9 <= a21) && a24 == 1) && a15 <= 8) && !(7 == a15)) && 0 < a12 + 43) || ((a24 == 1 && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && a15 <= 7) && !(7 == a15))) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6)) && 0 <= 41 + a12)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((a24 == 1 && 20 <= a12) && a15 <= 7)) || (((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && 5 * ((a12 + 4) / 5) == a12 + 4)))) || (((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12)) || ((a21 == 8 && a24 == 1) && 44 + a12 <= 0)) || ((((a24 == 1 && !(7 == a15)) && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && 5 * ((a12 + 4) / 5) == a12 + 4)))) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 95382 <= a12)) || ((a24 == 1 && 20 <= a12) && a12 <= 586307)) || (((a24 == 1 && a21 == 9) && 11 < a12) && 7 == a15)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || (((a24 == 1 && 7 == a21) && a15 <= 8) && 49 + a12 <= 0)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a12 <= 11 && 9 <= a21) && a24 == 1) && a15 <= 8) && !(7 == a15)) && 0 < a12 + 43) || ((a24 == 1 && a15 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && a15 <= 7) && !(7 == a15))) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6)) && 0 <= 41 + a12)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((a24 == 1 && 20 <= a12) && a15 <= 7)) || (((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && 5 * ((a12 + 4) / 5) == a12 + 4)))) || (((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12)) || ((a21 == 8 && a24 == 1) && 44 + a12 <= 0)) || ((((a24 == 1 && !(7 == a15)) && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && 5 * ((a12 + 4) / 5) == a12 + 4)))) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 95382 <= a12)) || ((a24 == 1 && 20 <= a12) && a12 <= 586307)) || (((a24 == 1 && a21 == 9) && 11 < a12) && 7 == a15)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || (((a24 == 1 && 7 == a21) && a15 <= 8) && 49 + a12 <= 0)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) RESULT: Ultimate proved your program to be correct! [2021-11-19 04:27:19,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2abd188b-0d28-4050-9b83-41e43f350d7f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE